CN111711978B - BSS coloring method and device in proximity-aware network and wireless access equipment - Google Patents

BSS coloring method and device in proximity-aware network and wireless access equipment Download PDF

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CN111711978B
CN111711978B CN202010477616.3A CN202010477616A CN111711978B CN 111711978 B CN111711978 B CN 111711978B CN 202010477616 A CN202010477616 A CN 202010477616A CN 111711978 B CN111711978 B CN 111711978B
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bss
field value
wireless access
channel
service discovery
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CN111711978A (en
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陶冬
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shikun Electronic Technology Co Ltd
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shikun Electronic Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
    • H04W40/16—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality based on interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The embodiment of the application relates to a BSS coloring method and device in a proximity sensing network and wireless access equipment. The BSS coloring method in the proximity sensing network of the embodiment of the application comprises the following steps: acquiring a first channel used by current wireless access equipment and a first BSS (base station system) formatting field value recorded by the current wireless access equipment; receiving a first service discovery frame message broadcast by at least one other wireless access device in a proximity-aware network; analyzing each first service discovery frame message to obtain a second BSS (base station system) ranging field value set, wherein the second BSS ranging field value set comprises BSS ranging field values of other wireless access devices of which the used channels are the same as the first channels; if the first BSS ranging field value is the same as any BSS ranging field value in the second BSS ranging field value set, the first BSS ranging field value is updated to be different from each second BSS ranging field value. The BSS coloring method in the proximity sensing network improves the multiplexing rate of the WiFi wireless channel and the throughput capacity of the WiFi wireless network.

Description

BSS coloring method and device in proximity-aware network and wireless access equipment
Technical Field
The embodiment of the application relates to the technical field of wireless networks, in particular to a BSS coloring method and device in a proximity sensing network and wireless access equipment.
Background
With the rapid development of technology and the rapid popularization of electronic devices, a Wireless Local Area Network (WLAN) function has become one of the indispensable functions of electronic devices.
In a wireless local area network environment, each wireless access device (hereinafter referred to as AP) may form a basic service set (hereinafter referred to as BSS), which is identified by a Basic Service Set Identifier (BSSID), multiple BSSs may be extended to an extended service set (hereinafter referred to as ESS), and each wireless user terminal (hereinafter referred to as STA) accesses the corresponding AP to access and utilize wireless network resources.
In the conventional technology, when an STA in a wireless local area network performs wireless transmission, an automatic collision avoidance and delay transmission mechanism is adopted, that is, only one STA is allowed to perform data transmission in the same channel of the wireless local area network at the same time, and if there are more STAs working in the same channel around, the throughput of the whole wireless system is greatly affected.
In order to improve the multiplexing rate of a WiFi channel in a wireless local area network, IEEE publishes a 6 th generation wireless technology 802.11ax, 802.11ax defines and publishes BSS sharing (coloring mechanism), the mechanism is a same-frequency transmission identification mechanism introduced by 802.11ax, a color identification field is added in a mac layer protocol packet header for each BSS, BSSs with different color identifications are considered to be not interfered with each other, and BSSs with the same color are considered to be interfered with each other.
However, the coloring mechanism does not specify a specific coloring manner, so that there may still exist a situation that color identifiers are the same among multiple BSSs in the same space, which causes mutual interference, so that the WiFi wireless channel reuse rate is low, and the WiFi wireless network throughput capacity is affected.
Disclosure of Invention
The embodiment of the application provides a BSS coloring method and device in a proximity sensing network and wireless access equipment, and improves the multiplexing rate of a WiFi wireless channel and the throughput capacity of a WiFi wireless network.
In a first aspect, an embodiment of the present application provides a BSS coloring method in a proximity-aware network, where the method includes:
acquiring a first channel used by current wireless access equipment and a first BSS (base station system) formatting field value recorded by the current wireless access equipment;
receiving first service discovery frame messages broadcast by at least one other wireless access device in the proximity sensing network, wherein each first service discovery frame message records channels used by the other wireless access devices and recorded BSS (base station system) ranging field values;
analyzing each first service discovery frame message to obtain a second BSS (base station system) ranging field value set, wherein the second BSS ranging field value set comprises BSS ranging field values recorded by other wireless access devices, and each used channel of the BSS ranging field values is the same as the first channel of the BSS ranging field value set;
if the first BSS coding field value is the same as any BSS coding field value in the second BSS coding field value set, updating the first BSS coding field value to be different from each BSS coding field value in the second BSS coding field value set.
Optionally, the method further includes:
writing the first channel and the updated first BSS ranging field value into a second service discovery frame message;
broadcasting the second service discovery frame message to other wireless access devices in the proximity-aware network.
Optionally, before receiving the first service discovery frame message sent by the other wireless access devices in the proximity-aware network, the method further includes:
writing the first channel and the first BSS ranging field value into a third service discovery frame message;
and broadcasting the third service discovery frame message to other wireless access devices in the proximity sensing network according to a set period, so that the other wireless access devices in the proximity sensing network broadcast the first service discovery frame message.
Optionally, if each BSS formatting field value in the first BSS formatting field value and the second BSS formatting field value set are not the same, the method further includes the following steps:
the set period is incrementally set.
Optionally, the method further includes:
and informing the wireless user terminal connected with the wireless access equipment to update the first BSS sharing field value.
Optionally, parsing each second service discovery frame message to obtain a second BSS reporting field value set includes:
analyzing each first service discovery frame message, and acquiring a channel and a BSS (base station system) ranging field value used by each other wireless access device from a preset field of the first service discovery frame message;
and acquiring BSS (base station system) coding field values of other wireless access devices of which the used channels are the same as the first channel to obtain the second BSS coding field value set.
In a second aspect, an embodiment of the present application provides an apparatus for BSS coloring in a proximity-aware network, where the apparatus includes:
an obtaining module, configured to obtain a first channel used by a current wireless access device and a first BSS reporting field value recorded by the current wireless access device;
a receiving module, configured to receive a first service discovery frame message broadcasted by at least one other wireless access device in the proximity sensing network, where each first service discovery frame message records a channel used by the other wireless access device and a BSS reporting field value;
an analyzing module, configured to analyze each first service discovery frame message to obtain a second BSS matching field value set, where the second BSS matching field value set includes BSS matching field values recorded by other wireless access devices in which each used channel is the same as the first channel;
an updating module, configured to update the first BSS matching field value to be different from each BSS matching field value in the second BSS matching field value set if the first BSS matching field value is the same as any BSS matching field value in the second BSS matching field value set.
Optionally, the apparatus further comprises:
a first writing module, configured to write the first channel and the updated first BSS formatting field value into a second service discovery frame message;
a first broadcasting module, configured to broadcast the second service discovery frame message to other wireless access devices in the proximity-aware network.
In a third aspect, an embodiment of the present application provides a wireless access device, including:
at least one memory and at least one processor;
the memory for storing one or more programs;
when executed by the at least one processor, the one or more programs cause the at least one processor to implement the steps of the BSS coloring method in the proximity-aware network according to the first aspect of the embodiment of the present application.
In a fourth aspect, the present application provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the steps of the BSS coloring method in the proximity-aware network according to the first aspect of the present application.
In the embodiment of the present application, a current wireless access device receives a first service discovery frame message sent by at least one other wireless access device in a proximity sensing network, and parses the first service discovery frame message to obtain a channel used by the other wireless access device and a BSS matching field value described in the channel, and obtains a second BSS matching field value set according to the BSS matching field value described in each used channel and the other wireless access device that is the same as the first channel, and if it is found that the BSS matching field values set by the other wireless access devices are consistent with the BSS matching field value set by the current wireless access device, the BSS matching field value of the current wireless access device is updated, so that BSS matching field values between BSSs using the same channel are all different in the same space, and mutual interference does not exist, the multiplexing rate of the WiFi wireless channel is improved, and the throughput capacity of the WiFi wireless network is improved.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Drawings
Fig. 1 is a schematic view of an application scenario of a BSS coloring mechanism in the conventional technology;
fig. 2 is a flow diagram of a method for BSS coloring in a proximity-aware network provided in an exemplary embodiment;
FIG. 3 is a flow diagram of a current wireless access device responding to a subscription message in an exemplary embodiment;
fig. 4 is a flow diagram of a current wireless access device broadcasting a third service discovery frame message provided in an exemplary embodiment;
fig. 5 is a flow diagram of a method for BSS coloring in a proximity-aware network in an exemplary embodiment;
fig. 6 is a block diagram of a BSS coloring apparatus in a proximity-aware network provided in an exemplary embodiment;
fig. 7 is a block diagram of a wireless access device provided in an example embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
It should be understood that the embodiments described are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims. In the description of the present application, it is to be understood that the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not necessarily used to describe a particular order or sequence, nor are they to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
As shown in fig. 1, fig. 1 is a schematic view illustrating an application scenario of a BSS coloring mechanism in an example of the conventional technology. In the scenario of fig. 1, a plurality of Wireless Access devices (Access points, APs) respectively form a plurality of Basic Service Sets (BSSs), and in each BSS, one or more Wireless user terminals (STAs) Access the corresponding AP through a Wireless Local Area Network (WLAN) to Access and utilize Wireless Network resources.
The AP is a wireless switch for a wireless network, and is, for example, a wireless router (including a wireless gateway and a wireless bridge) or other devices. The STA is a device required for realizing wireless internet access, such as a mobile phone, a tablet, a notebook computer, an intelligent watch, an intelligent bracelet, and the like, and the implementation manner of the wireless local area network may be WiFi.
In the conventional technology, when an STA in a wireless local area network performs wireless transmission, an automatic collision avoidance and delayed transmission mechanism is adopted, that is, only one STA is allowed to perform data transmission in the same channel of the wireless local area network at the same time, and if there are more STAs working in the same channel around, the throughput of the entire wireless system is greatly affected.
In order to improve the multiplexing rate of WiFi channels in the wireless local area network, IEEE has issued a 6 th generation wireless technology 802.11ax, 802.11ax defines and publishes a BSS sharing (coloring mechanism), the mechanism is a same frequency transmission identification mechanism introduced by 802.11ax, for the scenario in fig. 1, each BSS adds a color identification field, that is, a BSS sharing field, in a mac layer protocol header of an AP, and sends the BSS sharing field value to an STA.
In fig. 1, taking an example that both the AP1 and the AP2 use the channel 6 for data transmission, when the STA1 detects that the STA3 transmits data on the same channel, it determines whether the BSS marketing value recorded by the STA3 that is transmitting data is the same, and if the STA1 detects that the STA3 transmits data on the same channel, it determines that the STA1 and the STA3 are not in the same BSS, and the STA1 does not interfere with data transmission due to data transmission by the STA3, whereas when the STA1 detects that the STA2 transmits data on the same channel, it determines that the STA2 records the same BSS marketing value, and it determines that the STA1 and the STA2 are in the same BSS, and the STA1 interferes with data transmission due to data transmission by the STA 2.
The coloring mechanism realizes that two BSSs with different color identifications consider not to interfere with each other, and two BSSs with the same color consider to interfere with each other. However, the coloring mechanism does not disclose a specific coloring manner, that is, if the BSS coloring field values of the AP1 and the AP2 are randomly set, the same situation may also occur, and for a scenario in which multiple BSSs exist in the wireless local area network, the probability that different BSS coloring field values are set to be the same is also increased, so that mutual interference may still exist among the multiple BSSs in the wireless local area network, so that the WiFi wireless channel multiplexing rate is low, and the WiFi wireless network throughput capacity is affected.
A Neighbor Awareness Network (NAN), which is a Neighbor discovery protocol customized for the WiFi alliance based on the 802.11 protocol, wherein the NAN device may be an AP or an STA, that is, the ESS in fig. 1 may also form a Neighbor Awareness network group (cluster).
The two NAN devices discover each other and can establish peer-to-peer connections without using GPS, a mobile network, passing through APP, or requiring any configuration or internet, can explore other devices, applications and related information in close proximity, and are allowed to share data at the highest speed. The low power consumption connection mode can share very small data, such as data of a sensor, position information and the like.
There are three roles in a cluster, master, sync and normal, respectively.
The Master device is configured to transmit a sync beacon (NAN sync beacon), a Discovery beacon (NAN Discovery beacon), and a Service Discovery Frame message (Service Discovery Frame).
The Sync device transmits a synchronization beacon Frame and a Service Discovery Frame message (Service Discovery Frame) only within an agreed Discovery Window (DW).
The Normal device only sends a Service Discovery Frame message (Service Discovery Frame).
In the NAN, a device discovers that an existing cluster is added by passively receiving a Beacon frame (Beacon) periodically issued by the existing cluster, and meanwhile, in order to save channel resources, the Beacon frame (Beacon discovery) is only transmitted in a 6-channel mode, when the device works in a 5G channel, a low-frequency scanning channel is fixed to 44, a high-frequency scanning channel is fixed to 149, and devices which are supported by both low-frequency and high-frequency channels scan and are fixed to 149.
Under the condition that the NAN does not have a central node, all devices participating in the NAN mechanism are synchronized, and maintenance work and service Discovery work of the NAN mechanism are performed in a Discovery Window (DW) agreed by the NAN mechanism. The service discovery is realized by sending a service discovery frame message, the service discovery frame message includes an inquiry message or a broadcast message, and the NAN device may establish a corresponding connection based on information obtained in the service discovery, and then perform NAN-based intelligent management.
The types of the service discovery frame message include three types according to functional differences: publish (Publish), Subscribe (Subscribe), and reply (Follow-Up), and generally, an indication bit is included in a service discovery frame message to indicate the type of the message.
Publish message: for actively advertising or replying to a subscribe message;
subscribe message: for finding the service to be used;
Follow-Up message: specific information for transmitting/receiving a service.
Because the AP cannot detect the BSS matching field value set by another AP, the embodiment of the present application provides a BSS coloring method in a proximity-aware network, where the AP recognizes, through a service discovery function of the NAN network, the BSS matching field values of the other APs in the same channel in the proximity-aware network, and thus may prevent BSS matching field values of different APs in the same proximity-aware network from being set to be the same.
In an exemplary embodiment, as shown in fig. 2, for a wireless access device in a proximity-aware network, the method includes the following steps:
s201: the method includes acquiring a first channel used by a current wireless access device and a first BSS ranging field value recorded by the current wireless access device.
The current wireless access device is the wireless access device that performs the BSS coloring method in the proximity-aware network in the embodiment of the present application. The channel, i.e. the frequency band, is a data signal transmission channel using wireless signals as transmission carriers.
BSS ranging is a field that identifies the ID of the BSS. The information of the BSS matching field is added in both the Physical (PHY) layer and the control (MAC) layer, and in the Preamble of the 802.11ax physical layer header, its SIG-a field contains the BSS matching information field of 6 bits, which can identify up to 63 BSSs.
S202: receiving first service discovery frame messages broadcast by at least one other wireless access device in the proximity sensing network, wherein each first service discovery frame message records channels used by the other wireless access devices and recorded BSS (base station system) ranging field values.
In the specification of the NAN protocol, it is defined that at least a service descriptor (service descriptor) attribute needs to be included in the service discovery frame message, and in this embodiment, the other wireless access devices write a channel used by themselves and a BSS sharing field value thereof into the service discovery frame message, so that the wireless access device receiving the service discovery frame message can acquire a signal used by the other wireless access device and the BSS sharing field value.
In some examples, the type of the first service discovery frame message may be a subscription (Subscribe) message subscribed by another wireless access device, and after receiving the subscription message, the current wireless access device may perform relevant processing according to the received content, and simultaneously respond to the subscription message in the form of a Publish (Publish) message according to the received content.
In other examples, the type of the first service discovery frame message may also be a Publish (Publish) message, where the first service discovery frame message may be a message actively published by other wireless access devices, or a message published by other wireless access devices in response to a subscription message previously broadcast by a current wireless access device.
In one example, in a NAN network, the current wireless access device and the other wireless access devices may be master devices, sync devices, or Normal devices.
S203: analyzing each first service discovery frame message to obtain a second BSS ranging field value set, where the second BSS ranging field value set includes BSS ranging field values recorded by other wireless access devices in which each used channel is the same as the first channel.
In this embodiment of the present application, after receiving each first service discovery frame message, each first service discovery frame message is parsed, if a channel recorded by one first service discovery frame message is the same as the first channel, a BSS sharing field value recorded in the first service discovery frame message is obtained, and a second BSS sharing field value set is obtained according to a BSS sharing field value of other wireless access devices whose channels used are the same as the first channel.
In this embodiment of the present application, according to a communication rule and an encoding rule formulated in advance, the other wireless access devices may write a channel number and a BSS sharing field value in a designated format into the first service discovery frame message, and according to the communication rule, the current wireless access device obtains, from a preset field of the first service discovery frame message, each other channel and BSS sharing field value used by the wireless access device.
And obtaining the second BSS ranging field value set after obtaining the BSS ranging field values of other wireless access devices of which the used channels are the same as the first channel.
S204: if the first BSS coding field value is the same as any BSS coding field value in the second BSS coding field value set, updating the first BSS coding field value to be different from each BSS coding field value in the second BSS coding field value set.
If the first BSS coding field value is the same as any BSS coding field value in the second BSS coding field value set, when detecting that an STA connected to another wireless access device having the same first BSS coding field value is performing data transmission, the STA connected to the current wireless access device may interfere with the data transmission.
The method for updating the BSS reporting field value may be to randomly set the BSS reporting field value to be different from each of the second BSS reporting field values, or to set a certain setting rule to be different from each of the second BSS reporting field values.
In this embodiment of the present application, a current wireless access device receives a first service discovery frame message sent by at least one other wireless access device in a proximity awareness network, and obtains a channel used by the other wireless access device and a BSS sharing field value recorded in the first service discovery frame message by parsing, and obtains a second BSS sharing field value set according to the BSS sharing field value recorded by each used channel and the other wireless access device that is the same as the first channel, and if it is found that the BSS sharing field values set by the other wireless access devices are consistent with the BSS sharing field value set by the current wireless access device, the BSS sharing field value of the current wireless access device is updated, so that BSS sharing field values between BSSs using the same channel are all different in the same space, and mutual interference does not exist, the multiplexing rate of the WiFi wireless channel is improved, and the throughput capacity of the WiFi wireless network is improved.
In an exemplary embodiment, after updating the first BSS reporting field value, the current wireless access device further performs the following steps:
and informing the wireless user terminal connected with the wireless access equipment to update the first BSS sharing field value.
Specifically, the current radio access device may notify the radio user equipment connected to the current radio access device, by means of an action frame or other protocol frame, of updating the BSS reporting field value recorded by the radio user equipment.
In some examples, as shown in fig. 3, when the type of the first service discovery frame message is a message subscribed by another wireless access device (Subscribe), the current wireless access device responds to the subscribed message by publishing (Publish) message according to the received content, which specifically includes the following steps:
s301: and writing the first channel and the updated first BSS ranging field value into a second service discovery frame message.
S302: broadcasting the second service discovery frame message to other wireless access devices in the proximity-aware network.
The current wireless access device writes the first channel and the first BSS ranging field value into the first service discovery frame message in a specified format according to a communication rule and an encoding rule formulated in advance, so that other wireless access devices can analyze the first channel and the updated first BSS ranging field value from a second service discovery frame message through the communication rule and the decoding rule.
As shown in fig. 4, when the type of the first service discovery frame message is a message published (published) in response to a subscription message previously broadcast by the current wireless access device, the current wireless access device further includes a step of broadcasting the subscription message, and in an example, the method specifically includes the following steps:
s401: writing the first channel and the first BSS ranging field value in a third service discovery frame message.
S402: and broadcasting the third service discovery frame message to other wireless access devices in the proximity sensing network according to a set period, so that the other wireless access devices in the proximity sensing network broadcast the first service discovery frame message.
The current wireless access device writes the first channel and the first BSS coding field value into the first service discovery frame message in a specified format according to a preset communication rule and an encoding rule, so that other wireless access devices can analyze the first channel and the updated first BSS coding field value from a second service discovery frame message through the communication rule and the decoding rule, and then write the channel and the BSS coding field value of the other wireless access devices into the second service discovery frame message.
In an exemplary embodiment, the current wireless access device broadcasts the third service discovery frame message to other wireless access devices according to a set period, and when each BSS ranging field value in the first BSS ranging field value set and the second BSS ranging field value set are different, the current wireless access device incrementally sets the set period.
In a specific embodiment, as shown in fig. 5, the BSS coloring method in the proximity sensing network in the embodiment of the present application includes the following steps:
s501: the method includes acquiring a first channel used by a current wireless access device and a first BSS ranging field value recorded by the current wireless access device.
S502: writing the first channel and the first BSS ranging field value in a third service discovery frame message.
S503: and broadcasting the third service discovery frame message to other wireless access devices in the proximity sensing network according to a set period.
S504: receiving a first service discovery frame message broadcast by at least one other wireless access device in the proximity-aware network.
S505: analyzing each first service discovery frame message to obtain a second BSS ranging field value set, where the second BSS ranging field value set includes BSS ranging field values recorded by other wireless access devices in which each used channel is the same as the first channel.
S506: and judging whether the first BSS formatting field value is the same as any BSS formatting field value in the second BSS formatting field value set, if so, executing the step S508, and if not, executing the step S507.
S507: the set period is increased.
S508: updating the first BSS ranging field value to be different from each BSS ranging field value in the second BSS ranging field value set.
S509: and informing the wireless user terminal connected with the wireless access equipment to update the first BSS sharing field value.
Corresponding to the BSS coloring method in the neighbor awareness network, an embodiment of the present application further provides a BSS coloring apparatus in the neighbor awareness network, where a current wireless access device receives a first service discovery frame message sent by at least one other wireless access device in the neighbor awareness network, and obtains a channel used by the other wireless access device and a BSS coloring field value recorded in the first service discovery frame message by parsing, and obtains a second BSS coloring field value set according to a BSS coloring field value recorded by the other wireless access device in which each used channel is the same as the first channel, and if it is found that the BSS coloring field value set by the other wireless access device is consistent with the BSS coloring field value set by the current wireless access device, the BSS coloring field value of the current wireless access device is updated, so that between multiple BSSs in the same space, BSS ranking field values of BSSs using the same channel are different, mutual interference does not exist, the multiplexing rate of a WiFi wireless channel is improved, and the throughput capacity of the WiFi wireless network is improved.
Fig. 6 is a schematic structural diagram of a BSS coloring apparatus in a proximity-aware network according to an embodiment of the present application, and as shown in fig. 6, the BSS coloring apparatus 600 in the proximity-aware network includes:
an obtaining module 601, configured to obtain a first channel used by a current wireless access device and a first BSS matching field value recorded by the current wireless access device;
a receiving module 602, configured to receive a first service discovery frame message broadcasted by at least one other wireless access device in the proximity sensing network, where each first service discovery frame message records a channel used by the other wireless access device and a BSS reporting field value;
an analyzing module 603, configured to analyze each first service discovery frame message to obtain a second BSS aligning field value set, where the second BSS aligning field value set includes BSS aligning field values recorded by other wireless access devices in which each used channel is the same as the first channel;
an updating module 604, configured to update the first BSS reporting field value to be different from each BSS reporting field value in the second BSS reporting field value set if the first BSS reporting field value is the same as any BSS reporting field value in the second BSS reporting field value set.
In an exemplary embodiment, the BSS coloring apparatus 600 in the proximity-aware network further includes:
a first writing module, configured to write the first channel and the updated first BSS formatting field value into a second service discovery frame message;
a first broadcasting module, configured to broadcast the second service discovery frame message to other wireless access devices in the proximity-aware network.
In an exemplary embodiment, the BSS coloring apparatus 600 in the proximity-aware network further includes:
a second writing module, configured to write the first channel and the first BSS ranging field value into a third service discovery frame message before receiving a first service discovery frame message sent by another wireless access device in the proximity-aware network;
a second broadcasting module, configured to broadcast the third service discovery frame message to other wireless access devices in the proximity sensing network according to a set period, so that the other wireless access devices in the proximity sensing network broadcast the first service discovery frame message.
In an exemplary embodiment, the BSS coloring apparatus 600 in the proximity-aware network further includes:
a period setting module, configured to set the setting period additionally if each BSS ranging field value in the first BSS ranging field value set is different from each BSS ranging field value in the second BSS ranging field value set.
In an exemplary embodiment, the BSS coloring apparatus 600 in the proximity-aware network further includes:
a notification module, configured to notify a wireless user equipment connected to the wireless access device to update the first BSS reporting field value.
In an exemplary embodiment, the parsing module 603 includes:
an analyzing unit, configured to analyze each first service discovery frame message, and obtain a channel and a BSS reporting field value used by each other wireless access device from a preset field of the first service discovery frame message;
a set generating unit, configured to obtain a BSS matching field value of each used channel of other wireless access devices that are the same as the first channel, and obtain the second BSS matching field value set.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
Corresponding to the BSS coloring method in the proximity-aware network, embodiments of the present application further provide a wireless access device, where the wireless access device is a wireless switch for a wireless network, such as a wireless router (including a wireless gateway and a wireless bridge).
Fig. 7 is a block diagram illustrating a structure of a wireless access device according to an exemplary embodiment of the present application, as shown in fig. 7.
The wireless access device 700 includes a processor 710 and a memory 720. The number of the processors 710 in the main control chip may be one or more, and one processor 710 is taken as an example in fig. 7. The number of the memories 720 in the main control chip may be one or more, and one memory 720 is taken as an example in fig. 7.
The memory 720 is a computer-readable storage medium, and can be used to store software programs, computer-executable programs, and modules, such as the program of the BSS coloring method in the proximity-aware network according to any embodiment of the present application, and program instructions/modules (e.g., the obtaining module 701, the receiving module 602, the parsing module 603, and the updating module 604) corresponding to the BSS coloring method in the proximity-aware network according to any embodiment of the present application. The memory 720 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the device, and the like. Further, the memory 720 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 720 may further include memory located remotely from the processor 710, which may be connected to devices over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The processor 710 executes software programs, instructions and modules stored in the memory 720, so as to execute various functional applications and data processing of the device, that is, implement the BSS coloring method in the proximity-aware network described in any of the above embodiments.
In particular, in an exemplary embodiment, the following operations are implemented when processor 710 executes one or more programs stored in memory 720:
acquiring a first channel used by current wireless access equipment and a first BSS (base station system) formatting field value recorded by the current wireless access equipment;
receiving first service discovery frame messages broadcast by at least one other wireless access device in the proximity sensing network, wherein each first service discovery frame message records channels used by the other wireless access devices and recorded BSS (base station system) ranging field values;
analyzing each first service discovery frame message to obtain a second BSS (base station system) ranging field value set, wherein the second BSS ranging field value set comprises BSS ranging field values recorded by other wireless access devices, and each used channel of the BSS ranging field values is the same as the first channel of the BSS ranging field value set;
if the first BSS coding field value is the same as any BSS coding field value in the second BSS coding field value set, updating the first BSS coding field value to be different from each BSS coding field value in the second BSS coding field value set.
On the basis of the above embodiment, the method further includes:
writing the first channel and the updated first BSS ranging field value into a second service discovery frame message;
broadcasting the second service discovery frame message to other wireless access devices in the proximity-aware network.
On the basis of the foregoing embodiment, before receiving a first service discovery frame message sent by other wireless access devices in the proximity-aware network, the method further includes:
writing the first channel and the first BSS ranging field value into a third service discovery frame message;
and broadcasting the third service discovery frame message to other wireless access devices in the proximity sensing network according to a set period, so that the other wireless access devices in the proximity sensing network broadcast the first service discovery frame message.
On the basis of the above embodiment, the step of confirming whether the trigger condition is satisfied includes:
and confirming whether a preset timing task is started or not.
On the basis of the above embodiment, if each BSS viewing field value in the first BSS viewing field value set and the second BSS viewing field value set are not the same, the method further includes the following steps:
the set period is incrementally set.
On the basis of the above embodiment, the method further includes:
and informing the wireless user terminal connected with the wireless access equipment to update the first BSS sharing field value.
On the basis of the foregoing embodiment, parsing each second service discovery frame message to obtain a second BSS formatting field value set includes:
analyzing each first service discovery frame message, and acquiring a channel and a BSS (base station system) ranging field value used by each other wireless access device from a preset field of the first service discovery frame message;
and acquiring BSS (base station system) coding field values of other wireless access devices of which the used channels are the same as the first channel to obtain the second BSS coding field value set.
The present embodiment also provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the BSS coloring method in the proximity-aware network according to any one of the above embodiments.
The present invention may take the form of a computer program product embodied on one or more storage media including, but not limited to, disk storage, CD-ROM, optical storage, and the like, having program code embodied therein. Computer readable storage media, which include both non-transitory and non-transitory, removable and non-removable media, may implement any method or technology for storage of information. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of the storage medium of the computer include, but are not limited to: phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium may be used to store information that may be accessed by a computing device.
It is to be understood that the embodiments of the present application are not limited to the precise arrangements described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the embodiments of the present application is limited only by the following claims.
The above-mentioned embodiments only express a few embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the concept of the embodiments of the present application, and these embodiments are within the scope of the present application.

Claims (10)

1. A method for BSS coloring in a proximity-aware network, the method comprising:
acquiring a first channel used by current wireless access equipment and a first BSS (base station system) formatting field value recorded by the current wireless access equipment;
receiving first service discovery frame messages broadcast by at least one other wireless access device in the proximity sensing network, wherein each first service discovery frame message records channels used by the other wireless access devices and recorded BSS (base station system) ranging field values;
analyzing each first service discovery frame message, if a channel recorded by one first service discovery frame message is the same as the first channel, acquiring a BSS viewing field value recorded in the first service discovery frame message, and acquiring a second BSS viewing field value set according to BSS viewing field values of other wireless access devices, where each used channel is the same as the first channel, and the second BSS viewing field value set includes BSS viewing field values recorded by other wireless access devices, where each used channel is the same as the first channel;
if the first BSS coding field value is the same as any BSS coding field value in the second BSS coding field value set, updating the first BSS coding field value to be different from each BSS coding field value in the second BSS coding field value set, so that only one STA is allowed to transmit data in the same channel of a wireless local area network at the same time.
2. The BSS coloring method in a proximity-aware network according to claim 1, further comprising:
writing the first channel and the updated first BSS ranging field value into a second service discovery frame message;
broadcasting the second service discovery frame message to other wireless access devices in the proximity-aware network.
3. The BSS coloring method of claim 1, wherein before receiving the first service discovery frame message sent by the other wireless access devices in the proximity-aware network, the method further comprises:
writing the first channel and the first BSS ranging field value into a third service discovery frame message;
and broadcasting the third service discovery frame message to other wireless access devices in the proximity sensing network according to a set period, so that the other wireless access devices in the proximity sensing network broadcast the first service discovery frame message.
4. The BSS coloring method of claim 3, wherein if the first BSS coloring field value is not the same as each BSS coloring field value in the second BSS coloring field value set, the method further comprises:
the set period is incrementally set.
5. The BSS coloring method in a proximity-aware network according to claim 1, further comprising:
and informing the wireless user terminal connected with the wireless access equipment to update the first BSS sharing field value.
6. The method of claim 1, wherein parsing each of the first service discovery frame messages, if a channel recorded by one of the first service discovery frame messages is the same as the first channel, obtaining a BSS marketing field value recorded by the first service discovery frame message, and obtaining a second set of BSS marketing field values according to BSS marketing field values of other radio access devices whose channels used are the same as the first channel, comprises:
analyzing each first service discovery frame message, and acquiring a channel and a BSS (base station system) ranging field value used by each other wireless access device from a preset field of the first service discovery frame message;
and acquiring BSS (base station system) coding field values of other wireless access devices of which the used channels are the same as the first channel to obtain the second BSS coding field value set.
7. An apparatus for BSS coloring in a proximity-aware network, the apparatus comprising:
an obtaining module, configured to obtain a first channel used by a current wireless access device and a first BSS reporting field value recorded by the current wireless access device;
a receiving module, configured to receive a first service discovery frame message broadcasted by at least one other wireless access device in the proximity sensing network, where each first service discovery frame message records a channel used by the other wireless access device and a BSS reporting field value;
an analyzing module, configured to analyze each first service discovery frame message, if a channel recorded by one first service discovery frame message is the same as the first channel, obtain a BSS reporting field value recorded in the first service discovery frame message, and obtain a second BSS reporting field value set according to the BSS reporting field values of other wireless access devices having the same channel as the first channel, where the second BSS reporting field value set includes BSS reporting field values recorded by other wireless access devices having the same channel as the first channel;
an updating module, configured to update the first BSS reporting field value to be different from each BSS reporting field value in the second BSS reporting field value set if the first BSS reporting field value is the same as any BSS reporting field value in the second BSS reporting field value set, so that only one STA is allowed to perform data transmission in the same channel of a wireless local area network at the same time.
8. The BSS coloring apparatus in a proximity-aware network according to claim 7, further comprising:
a first writing module, configured to write the first channel and the updated first BSS formatting field value into a second service discovery frame message;
a first broadcasting module, configured to broadcast the second service discovery frame message to other wireless access devices in the proximity-aware network.
9. A wireless access device, comprising:
at least one memory and at least one processor;
the memory for storing one or more programs;
the one or more programs, when executed by the at least one processor, cause the at least one processor to perform the steps of the BSS coloring method in the proximity-aware network according to any one of claims 1 to 6.
10. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of the BSS coloring method in the proximity-aware network according to any one of claims 1 to 6.
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